| Name | Cosmarium contractum f. jacobsenii (J.Roy) West & G.S.West |
| Authorship | (J. Roy) West & G. S. West |
| Rank | Forma |
| NomenclaturalStatus | Unknown |
| Placed in | Cosmarium contractum O.Kirchner |
| Remarks | Created from Taxon Name Import: Cosmarium contractum f. jacobsenii (J.Roy) West & G.S.West |
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